diff mbox series

[net-next,5/5] net: stmmac: dwmac-sun8i: Add a shutdown callback

Message ID 20210103112542.35149-6-samuel@sholland.org (mailing list archive)
State Not Applicable
Delegated to: Netdev Maintainers
Headers show
Series dwmac-sun8i cleanup and shutdown hook | expand

Checks

Context Check Description
netdev/apply fail Patch does not apply to net-next
netdev/tree_selection success Clearly marked for net-next

Commit Message

Samuel Holland Jan. 3, 2021, 11:25 a.m. UTC
The Ethernet MAC and PHY are usually major consumers of power on boards
which may not be able to fully power off (that have no PMIC). Powering
down the MAC and internal PHY saves power while these boards are "off".

Signed-off-by: Samuel Holland <samuel@sholland.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

Comments

Chen-Yu Tsai Jan. 6, 2021, 10:07 a.m. UTC | #1
On Sun, Jan 3, 2021 at 7:25 PM Samuel Holland <samuel@sholland.org> wrote:
>
> The Ethernet MAC and PHY are usually major consumers of power on boards
> which may not be able to fully power off (that have no PMIC). Powering
> down the MAC and internal PHY saves power while these boards are "off".
>
> Signed-off-by: Samuel Holland <samuel@sholland.org>

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
index 4638d4203af5..926e8d5e8963 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
@@ -1282,6 +1282,15 @@  static int sun8i_dwmac_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static void sun8i_dwmac_shutdown(struct platform_device *pdev)
+{
+	struct net_device *ndev = platform_get_drvdata(pdev);
+	struct stmmac_priv *priv = netdev_priv(ndev);
+	struct sunxi_priv_data *gmac = priv->plat->bsp_priv;
+
+	sun8i_dwmac_exit(pdev, gmac);
+}
+
 static const struct of_device_id sun8i_dwmac_match[] = {
 	{ .compatible = "allwinner,sun8i-h3-emac",
 		.data = &emac_variant_h3 },
@@ -1302,6 +1311,7 @@  MODULE_DEVICE_TABLE(of, sun8i_dwmac_match);
 static struct platform_driver sun8i_dwmac_driver = {
 	.probe  = sun8i_dwmac_probe,
 	.remove = sun8i_dwmac_remove,
+	.shutdown = sun8i_dwmac_shutdown,
 	.driver = {
 		.name           = "dwmac-sun8i",
 		.pm		= &stmmac_pltfr_pm_ops,